- Author Phobia: The clown motifs and imagery come from director Mark Rosman's own fear of clowns.
- Creator Backlash: Mark Rosman disliked the marketing campaign, feeling that the poster made the film look like softcore porn.
- The Danza: Kate McNeil plays Katherine.
- Enforced Method Acting: The lead actresses all lived together during the shoot to build up camaraderie of sorority sisters.
- Executive Meddling:
- The opening was shot in black and white. The distributors had it tinted blue, feeling audiences wouldn't sit through black and white.
- Mark Rosman really wanted to have Katherine killed off too, wanting to subvert the Final Girl trope. Distributors however insisted that she had to live.
- Jossed: It was a fan theory for years that Morgan had very few lines because her actress wasn't good. The director Jossed that, saying Morgan was written to be The Quiet One.
- No Budget: Made for about $300,000.
- One-Book Author: Jodie Draigie (Morgan), Robin Meloy (Jeanie) and Ellen Dorsher (Stevie) only did this one film.
- Real Life Writes the Plot: Diane became the second victim because filmmakers felt she looked too similar to Vicki.
- Same Language Dub: Lois Kelso Kent who plays Mrs Slater, was dubbed by Barbara Harris, because Lois's voice was considered not scary enough.
- Throw It In!: The boy who gets stabbed through the throat after witnessing the killer coming out of the pool. He was working at a make-up effects house and a life mask had already been made of him - so Mark Rosman cast him as a frat boy and added the death scene to make the film gorier.
- What Could Have Been:
- Kate McNeil was a last minute replacement for an actress who dropped out of the part of Katherine, because she didn't want to jeopardise her SAG status.
- Only Morgan, Liz and Vicki's deaths were going to be explicit. Mark Rosman later decided to make the rest of the deaths gorier in order to make the movie more appealing to a distributor.
- Two alternate endings were shot. The first would reveal Katherine's body in the pool with the rest. The second would have had her in hospital, being pushed in a wheelchair. The film would end as it was revealed that Eric was pushing her.
- Mark Rosman considered making a sequel, but couldn't come up with a good enough idea.
- Working Title: The original title was Screamer.
- Write What You Know: The director based part of the movie on his own college experiences.
Trivia / The House on Sorority Row